Approaching gravitation by quantum gravity with matter near four dimensions

dc.contributor.author	Elizalde, E
dc.contributor.author	Odintsov, S. D
dc.contributor.author	Romeo, A
dc.date.accessioned	2008-05-21T10:11:41Z
dc.date.available	2008-05-21T10:11:41Z
dc.date.issued	1997
dc.identifier.citation	BASI, Vol. 25, No. 4, pp. 549 - 554	en
dc.identifier.uri	http://hdl.handle.net/2248/2332
dc.description.abstract	The phase structure and infrared (IR) behavior of higher-derivative quantum gravity (QG) near (but below) four dimensions, with a few different matter theories, shows remarkable properties. Models of this sort can be analyzed by renormalization group (RG) methods in 4 – ε dimensions for the following matter sectors: f ?, 0(N) ?, scalar electrodynamics, and SU(2) with scalars. New fixed points for the scalar coupling are predicted and one of them turns out to be infrared (IR) stable. For the theory at nonzero temperature, the QG-perturbed IR stable fixed point leads then to a second order phase transition. Other noticeable effects of QG influence are changes in the shape of the RG improved effective potential, like in the SU(2)theory, which can be viewed as the confining phase of the standard model.	en
dc.format.extent	522056 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1997BASI...25..549E	en
dc.subject	Quantum Gravitation	en
dc.subject	Scalar Electrodynamics	en
dc.title	Approaching gravitation by quantum gravity with matter near four dimensions	en
dc.type	Article	en